Ivan Iudice - IEEE Xplore Author Profile

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A novel technology based on stacked intelligent metasurfaces (SIM) has recently emerged. This platform involves cascading multiple metasurfaces, each acting as a digitally programmable physical layer within a diffractive neural network. SIM enable the implementation of signal-processing transformations directly in the electromagnetic wave domain, eliminating the need for expensive, high-precision,...Show More
Stacked intelligent metasurfaces (SIM) have recently emerged as a novel technology that enables the implementation of signal-processing algorithms in the electromagnetic wave domain. However, existing works employing SIM in wireless scenarios rely solely on nearly passive structures that control only the phase of the meta-atoms in each layer. We propose a SIM-aided downlink multiuser transmission ...Show More
Integration of unmanned aerial vehicles (UAVs) for surveillance or monitoring applications into fifth generation (5G) New Radio (NR) cellular networks is an intriguing problem that has recently tackled a lot of interest in both academia and industry. For an efficient spectrum usage, we consider a recently-proposed sky-ground nonorthogonal multiple access (NOMA) scheme, where a cellular-connected U...Show More
Communication between satellites in low-Earth orbit (LEO) constellations takes place through inter-satellite links (ISLs). Unlike intra-plane ISLs, which interconnect satellites belonging to the same orbital plane with fixed relative distance, inter-plane ISLs experience significant Doppler frequency shifts, since satellites belonging to different orbital planes exhibit time-varying relative dista...Show More
In aviation, the impact of threats is becoming increasingly significant, particularly for global navigation satellite system (GNSS). Two relevant GNSS threats are represented by jamming and spoofing. In order to evaluate the technological so-lutions to counter GNSS attacks, such attacks should be assessed by means of a proper GNSS threat simulator. This work shows the implementation and the testin...Show More
Mission planners are one of the major classes of autonomy software and their design is especially challenging in the case cooperation autonomy is required for unmanned multi-vehicle systems. A clear example of this is given by the applications of teams of drones, such as multi-drone spatio-temporal sensing. Here, drone teams act as mobile and cooperative sensor networks to simultaneously collect s...Show More
In this paper, we present a first attempt to incorporate in the GNU Radio ecosystem a tool called CycloDSP, devoted to the analysis of complex-valued cyclostationary signals. Such signals are ubiquitous in communication and signal processing, exhibiting periodic or almost periodic statistics that are characterized by a countable set of cycle frequencies, which are related to the main signal period...Show More
We consider a communication framework between a swarm of satellites, belonging to a massive low-Earth orbit (LEO) constellation, and a receiving satellite (i.e., the sink). The employed multiple access scheme combines non-orthogonal multiple access (NOMA), where intersatellite links (ISLs) share the same time-frequency resource blocks, and orthogonal multiple access (OMA), where ISLs make use of o...Show More
Cooperative autonomous systems are a priority objective for military research & development of unmanned vehicles. Drone teams are one of the most prominent applications of cooperative unmanned systems and represent an ideal solution for providing both autonomous detection and recognition within security surveillance and monitoring. Here, a drone team may be arranged as a mobile and cooperative sen...Show More
Aeronautical research is pushing toward the electrification of aircraft to achieve more electric aircraft and all-electric aircraft. The same trend is reflected into aerospace research for all-electric spacecraft. Nevertheless, aircraft and spacecraft electrification requires additional data networks and cables, increasing the complexity and the weight of wiring. Powerline communications (PLCs) so...Show More
Management of crowd information in public transportation (PT) systems is crucial, both to foster sustainable mobility, by increasing the user’s comfort and satisfaction during normal operation, as well as to cope with emergency situations, such as pandemic crises, as recently experienced with coronavirus disease (COVID-19) limitations. This article presents a taxonomy and review of sensing technol...Show More
Networks whereby traditional terrestrial users (TUs) coexist with flying unmanned aerial vehicles (UAVs) acting as additional aerial users (AUs), has gained significant attention as a promising technology for future 5G and beyond networks. In this scenario, we investigate the case wherein an UAV and a static TU are paired to simultaneously transmit their uplink signals to a ground base station (BS...Show More
Integration of Unmanned Aerial Vehicles (UAVs) or "drones" into the civil aviation airspace is a problem of increasing interest in the aviation community, as testified by many initiatives developed worldwide. Many traditional surveillance solutions for manned aircrafts employ the Automatic Dependent System-Broadcast (ADS-B) technology, which however might present several drawbacks when used for UA...Show More
Unmanned aerial vehicles (UAVs) can be integrated into wireless sensor networks (WSNs) for smart city applications in several ways. Among them, a UAV can be employed as a relay in a “store-carry and forward” fashion by uploading data from ground sensors and metering devices and, then, downloading it to a central unit. However, both the uploading and downloading phases can be prone to potential thr...Show More
In multiple antenna systems employing time-division duplexing, spatial precoder design at the base station (BS) leverages channel state information acquired through uplink pilot transmission, under the assumption of channel reciprocity. Malicious eavesdroppers can start pilot spoofing attacks to alter such design, in order to improve their eavesdropping performance in downlink. The aim of this pap...Show More
In the next years, several new applications involving unmanned aerial vehicles (UAVs) for public and commercial uses are envisaged. In such developments, since UAVs are expected to operate within the public airspace, a key issue is the design of reliable control and non-payload communication (CNPC) links connecting the ground control station to the UAV. At the physical layer, CNPC design must cope...Show More
This letter deals with second-order statistics (SOS) of continuous-phase modulated (CPM) signals. To overcome some mathematical inconsistencies emerging from the idealized assumption that the CPM signal evolves from t = -∞, we consider a one-sided model for the signal, which starts from t = 0, noting also that such a model emerges naturally when building practical SOS estimators. On the basis of s...Show More
In this paper, transmission of continuous phase modulated (CPM) signals over time- and frequency-selective (i.e., doubly-selective) channels is considered. Leveraging on the well-known Laurent representation for a CPM signal, we design a two-stage receiver, composed of a linear time-varying (LTV) equalizer, followed by a detector: the former one aims at mitigating the channel dispersion and it is ...Show More
This paper deals with the problem of transceiver optimization for amplify-and-forward multiple-input multiple-output (MIMO) cooperative networks with multiple relays. We consider the case where precoding at the source, forwarding at the relays, and decoding at the destination are all carried out by means of widely-linear (WL) structures. On the basis of the minimum-mean-square-error criterion with...Show More
This paper deals with the synthesis of a blind channel shortening algorithm for orthogonal frequency-division multiplexing (OFDM) systems operating over doubly selective wireless channels, a challenging scenario that is likely to happen in modern unmanned aircraft systems (UASs) data links. When the length of the OFDM cyclic prefix (CP) is smaller than the channel order, we propose to employ a bli...Show More
We present an ω-k approach based on the use of a 1D Non-Uniform FFT (NUFFT) routine, of NER (Non-Equispaced Results) type, programmed on a GPU by means of a Matlab code speeded-up by Accelereyes Jacket.Show More